Citation

Aman, Fazlul and Muhammad, Usman and Nor, Normiza Mohamad (2026) Characterisation of Dry and Wet Test Media in Grounding Systems under AC Frequency and High Currents. In: 2026 International Conference on Electric Power and Renewable Energy, EPREC 2026, 2 January 2026 - 4 January 2026, Durg.

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Abstract

Owing to electrically conductive characteristics of enhancement materials (EMs), EM is now highly used to treat the soil, so that a low ground resistance value is obtained. However, in most cases, EMs would become mostly effective with the presence of water content (WC). In this work, experimental results of dry and wet test media under AC frequency and impulse tests of both impulse polarities are presented. A rather straight forward observation was seen in dry and wet test media under AC frequency tests where dry soil can be represented as an R-C network in parallel while wet soil is having a linear resistive behaviour. However, large differences are noticed when the test media is subjected under impulse conditions. High oscillations in voltage and current traces in dry EM due to capacitive effect in combination with inductive effect, while conduction current in dry sand was only seen during breakdown. In wet test media, an addition of 5%EM exhibited lower resistivity and breakdown voltage than the test media without EM.

Item Type:	Conference or Workshop Item (Paper)
Uncontrolled Keywords:	Resistivity, breakdown voltage.
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK7800-8360 Electronics
Divisions:	Faculty of Engineering and Technology (FET)
Depositing User:	Ms Rosnani Abd Wahab
Date Deposited:	04 May 2026 02:21
Last Modified:	04 May 2026 02:21
URII:	http://shdl.mmu.edu.my/id/eprint/15829

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